Home Postcodes by state SA 5266 Postcode 5266 5266 is the postcode for 4 localities in SA: Bunbury, Colebatch, Deepwater and Tintinara. Localities with postcode 5266BunburySAColebatchSADeepwaterSATintinaraSA Postcode 5266 State or territory South Australia (SA) Localities 4 Council area Coorong Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5265 · Postcode 5267